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Which fans to buy?

post #1 of 6
Thread Starter 
OK so currently I have a 120mm Xilence Redwing at the back of my case and a 140mm coolermaster one at the front (one that came with my old CM 690 Advanced).
I had the stock fan on my CM 212+ but it was way too loud so I changed it out for a Gentle Typhoon 1450rpm which is magic, wonderful fan.

However..I can now hear the Xilence and the CM fan and whilst not abysmal it's still annoying and would love to get all the fans down to the same noise as the GT..21db.

So do I either:

1) buy a Noiseblocker PK2 for the front and a Noiseblocker PL2 for the back

2) buy a Noiseblocker PK2 for the front and another GT for the back

3) buy 2 GT's, one for the back and one for the front and have 120mm at the front instead of 140mm

Also..any thoughts on adding another GT to the back of the 212+?

edit: just checked the specs of the PK2 and the PL2 and they have both the same CFM and noise..so whats the point in buying the more expensive 140mm over the 120mm?
Edited by timmygcsc2308 - 10/13/11 at 6:07am
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post #2 of 6

I would have to recommend this:

These are extremely popular because of their speed and noise level.
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post #3 of 6
Thread Starter 
I don't want the 1850rpm ones, I have the 1450 gentle typhoons (which was option number 3) and they are perfect in terms of noise/performance. The Noiseblockers however push more CFM and are slightly quieter and since they are case fans static pressure is not too much of an issue - so I understand...
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post #4 of 6
I actually just purchased all three of those fans for my HAF 932: 4x NB PL2 on side, 1x NB PK2 on the back, 2x GT AP-15 for the heatsink. Since you don't need the static pressure of the AP-15, I would just go for the Noiseblockers, especially considering the fact that you are running the AP-14 (lucky dog, out of stock everywhere now), and you don't want it to be any louder (which the AP-15 will be).

As for why the 140mm is the same dB as 120mm, that is a bit weird. It is larger so it runs slower so technically it should move air at a lower dB level. Testing error maybe?
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post #5 of 6
If your looking for case fines get scythe fans noise blockers or case fans is a bit overzealous. CM R4 are great fans for the noise ask Martin. Best budget fan that push crazy amount of air are Yate Loons mid speeds.

Another fan on your CM 212+ should give you more efficient airflow that has to be compensated by proper amount of air being exhaust from your case. At most two fans setup on P/P setup on your heat sink should gain you anyway were from 2-4 degree drop in temp on cpu core. But that is only if your case is doing an adequate job in pushing fresh air in and out of your case.
Edited by lilraver018 - 10/13/11 at 9:41am
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post #6 of 6
Thread Starter 
bump,
instead of putting noiseblockers all round which will cost me £45, how about this:


The S-Flex's move about 5cfm less air but the same db level, whereas the slip stream does about 10cfm more but an increase of about 2db (which I'm hardly likely to notice).

Saves me £20 for roughly the same performance and airflow no?
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